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CIO-DIO48H

Digital Input/Output Board

User’s Guide

Document Revision 1, December, 2006

© Copyright 2006, Measurement Computing Corporation

Your new Measurement Computing product comes with a fantastic extra —

Management committed to your satisfaction!

Refer to www.mccdaq.com/execteam.html for the names, titles, and contact information of each key executive at Measurement Computing.

Thank you for choosing a Measurement Computing product—and congratulations! You own the finest, and you can now enjoy the protection of the most comprehensive warranties and unmatched phone tech support. It’s the embodiment of our mission:

To provide PC-based data acquisition hardware and software that will save time and save money.

Simple installations minimize the time between setting up your system and actually making measurements. We offer quick and simple access to outstanding live FREE technical support to help integrate MCC products into a DAQ system.

Lifetime warranty: Every hardware product manufactured by Measurement Computing Corporation is warranted against defects in materials or workmanship for the life of the product. Products found defective are repaired or replaced promptly.

Lifetime Harsh Environment Warranty®: We will replace any product manufactured by Measurement Computing Corporation that is damaged (even due to misuse) for only 50% of the current list price. I/O boards face some tough operating conditions, some more severe than the boards are designed to withstand. When a board becomes damaged, just return the unit with an order for its replacement at only 50% of the current list price. We don’t need to profit from your misfortune. By the way, we honor this warranty for any manufacturer’s board that we have a replacement for.

30 Day Money Back Guarantee: You may return any Measurement Computing Corporation product within 30 days of purchase for a full refund of the price paid for the product being returned. If you are not satisfied, or chose the wrong product by mistake, you do not have to keep it. Please call for an RMA number first. No credits or returns accepted without a copy of the original invoice. Some software products are subject to a repackaging fee.

These warranties are in lieu of all other warranties, expressed or implied, including any implied warranty of merchantability or fitness for a particular application. The remedies provided herein are the buyer’s sole and exclusive remedies. Neither Measurement Computing Corporation, nor its employees shall be liable for any direct or indirect, special, incidental or consequential damage arising from the use of its products, even if Measurement Computing Corporation has been notified in advance of the possibility of such damages.

HM CIO-DIO48H.doc

3

Trademark and Copyright Information

TracerDAQ, Universal Library, Harsh Environment Warranty, Measurement Computing Corporation, and the Measurement Computing logo are either trademarks or registered trademarks of Measurement Computing Corporation.

Windows, Microsoft, and Visual Studio are either trademarks or registered trademarks of Microsoft Corporation

LabVIEW is a trademark of National Instruments.

CompactFlash is a registered trademark of SanDisk Corporation.

XBee and XBee-PRO are trademarks of MaxStream, Inc.

All other trademarks are the property of their respective owners.

Information furnished by Measurement Computing Corporation is believed to be accurate and reliable. However, no responsibility is assumed by Measurement Computing Corporation neither for its use; nor for any infringements of patents or other rights of third parties, which may result from its use. No license is granted by implication or otherwise under any patent or copyrights of Measurement Computing Corporation.

All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form by any means, electronic, mechanical, by photocopying, recording, or otherwise without the prior written permission of Measurement Computing Corporation.

Notice

Measurement Computing Corporation does not authorize any Measurement Computing Corporation product for use in life support systems and/or devices without prior written consent from Measurement Computing Corporation. Life support devices/systems are devices or systems which, a) are intended for surgical implantation into the body, or b) support or sustain life and whose failure to perform can be reasonably expected to result in injury. Measurement Computing Corporation products are not designed with the components required, and are not subject to the testing required to ensure a level of reliability suitable for the treatment and diagnosis of people.

4

Table of Contents

 

Preface

 

About this User's Guide .......................................................................................................................

6

What you will learn from this user's guide .........................................................................................................

6

Conventions in this user's guide .........................................................................................................................

6

Where to find more information.........................................................................................................................

6

Chapter 1

 

Introducing the CIO-DIO48H ................................................................................................................

7

Overview: CIO-DIO48H features ......................................................................................................................

7

Software features................................................................................................................................................

7

Chapter 2

 

Installing the CIO-DIO48H ....................................................................................................................

8

What comes with your CIO-DIO48H shipment? ...............................................................................................

8

Hardware ..........................................................................................................................................................................

8

Additional documentation.................................................................................................................................................

8

Optional components..........................................................................................................................................

8

Unpacking the CIO-DIO48H .............................................................................................................................

9

Installing the software ........................................................................................................................................

9

Configuring the base address switch ..................................................................................................................

9

Base address switch ..........................................................................................................................................................

9

Installing the CIO-DIO48H..............................................................................................................................

10

Connecting the board for I/O operations ..........................................................................................................

11

Connectors, cables – main I/O connector ........................................................................................................................

11

Pinout – main I/O connector ............................................................................................................................................

11

Cabling.............................................................................................................................................................................

12

Field wiring, signal termination, and conditioning ..........................................................................................................

12

Chapter 3

 

Functional Details ...............................................................................................................................

13

82C55 emulation ..............................................................................................................................................

13

Signal level control...........................................................................................................................................

13

Digital I/O Isolation..........................................................................................................................................

14

Chapter 4

 

Programming and Developing Applications ....................................................................................

16

Programming languages ...................................................................................................................................

16

Packaged applications programs ......................................................................................................................

16

Register-level programming .............................................................................................................................

16

Chapter 5

 

Specifications......................................................................................................................................

17

Digital input/output ..........................................................................................................................................

17

Power consumption ..........................................................................................................................................

17

Environmental ..................................................................................................................................................

17

Main connector and pin out..............................................................................................................................

17

5

Preface

About this User's Guide

What you will learn from this user's guide

This user's guide explains how to install, configure, and use the CIO-DIO48H board so that you get the most out of its analog output features. This user's guide also refers you to related documents available on our web site, and to technical support resources.

Conventions in this user's guide

The following conventions are used in this manual to convey special information:

For more information on …

Text presented in a box signifies additional information and helpful hints related to the subject matter you are reading.

Caution! Shaded caution statements present information to help you avoid injuring yourself and others, damaging your hardware, or losing your data.

<#:#>

Angle brackets that enclose numbers separated by a colon signify a range of numbers, such as those assigned

 

to registers, bit settings, etc.

bold text

Bold text is used for the names of objects on the screen, such as buttons, text boxes, and check boxes. For

 

example:

 

1. Insert the disk or CD and click the OK button.

italic text

Italic text is used for the names of manuals and help topic titles, and to emphasize a word or phrase. For

 

example:

 

The InstaCal installation procedure is explained in the Quick Start Guide.

 

Never touch the exposed pins or circuit connections on the board.

Where to find more information

The following electronic documents provide information relevant to the operation of the CIO-DIO48H.

MCC's Specifications: CIO-DIO48H (the PDF version of the Specifications chapter in this guide) is available on our web site at www.mccdaq.com/pdfs/CIO-DIO48H.pdf.

MCC's Quick Start Guide is available on our web site at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

MCC's Guide to Signal Connections is available on our web site at www.mccdaq.com/signals/signals.pdf.

MCC's Universal Library User's Guide is available on our web site at www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf.

MCC's Universal Library Function Reference is available on our web site at www.mccdaq.com/PDFmanuals/sm-ul-functions.pdf.

MCC's Universal Library for LabVIEWUser’s Guide is available on our web site at www.mccdaq.com/PDFmanuals/SM-UL-LabVIEW.pdf.

CIO-DIO48H User's Guide (this document) is also available on our web site at www.mccdaq.com/PDFmanuals/CIO-DIO48H.pdf.

6

Chapter 1

Introducing the CIO-DIO48H

Overview: CIO-DIO48H features

The CIO-DIO48H provides 48-bits of digital I/O. The I/O is organized into two 24-bit groups based on an 82C55 mode 0 emulation. Each 24-bit group is divided into three eight-bit ports labeled An, Bn and Cn, where n is either "1" for FIRSTPORT or "2" for SECONDPORT. Port C can be split into two four-bit nibbles Port C-HI and Port C-LO. Each of these ports may be individually programmed as input or output.

All digital inputs are LSTTL. The output signals are buffered high output drive TTL. The digital output drivers are 74S244 chips that can sink 64 mA and source 15 mA. The input buffers are 74LS373 chips and have standard high input impedance of the 74LS series devices.

On power up and reset, all I/O bits are set to input mode. If you are using the board to control items that must be OFF on reset, install pull-down resistors. The board is equipped with open locations where you can install SIP resistor networks for either pull-up or pull-down.

All signals pass through a 50-pin connector.

Software features

For information on the features of InstaCal and the other software included with your CIO-DIO48H, refer to the Quick Start Guide that shipped with your device. The Quick Start Guide is also available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf.

Check www.mccdaq.com/download.htm for the latest software version.

7

Chapter 2

Installing the CIO-DIO48H

What comes with your CIO-DIO48H shipment?

The following items are shipped with the CIO-DIO48H.

Hardware

CIO-DIO48H

Additional documentation

In addition to this hardware user's guide, you should also receive the Quick Start Guide (available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software-Quick-Start.pdf). This booklet supplies a brief description of the software you received with your CIO-DIO48H and information regarding installation of that software. Please read this booklet completely before installing any software or hardware.

Optional components

C50FF-x cable

Signal termination and conditioning accessories

MCC provides signal conditioning and termination products for use with the CIO-DIO48H. Refer to Field wiring, signal termination, and conditioning on page 12 for a complete list of compatible accessory products.

8

CIO-DIO48H User's Guide

Installing the CIO-DIO48H

Unpacking the CIO-DIO48H

As with any electronic device, you should take care while handling to avoid damage from static

electricity. Before removing the CIO-DIO48H from its packaging, ground yourself using a wrist strap or by simply touching the computer chassis or other grounded object to eliminate any stored static charge.

If any components are missing or damaged, notify Measurement Computing Corporation immediately by phone, fax, or e-mail:

Phone: 508-946-5100 and follow the instructions for reaching Tech Support.

Fax: 508-946-9500 to the attention of Tech Support

Email: techsupport@mccdaq.com

Installing the software

Refer to the Quick Start Guide for instructions on installing the software on the Measurement Computing Data Acquisition Software CD. This booklet is available in PDF at www.mccdaq.com/PDFmanuals/DAQ-Software- Quick-Start.pdf.

Configuring the base address switch

The CIO-DIO48H employs the PC bus for power, communications and data transfer. It draws power from the PC, monitors the address lines and control signals, responds to its I/O address, and receives and places data on the eight data lines.

The CIO-DIO48H has one bank of base address-select switches. Verify their settings before installing the board in your computer.

Base address switch

The easiest way to set the base address is to let InstaCal show you the correct settings. However, if you are already familiar with setting ISA base addresses, you may use the base address switch description below to guide your base address selection.

The base address is the starting location that software writes to when communicating with the CIO-DIO48H. A set of DIP switches is used to set the base address. By placing the switch down, the CIO-DIO48H address decode logic is instructed to respond to that address bit. A complete address is constructed by calculating the HEX or decimal number which corresponds to all the address bits the board has been instructed to respond to.

The board is shipped with the base address set to 300 hex (see Figure 1). Unless there is already a board in your system that uses address 300 hex (768 decimal), leave the switches as they were set at the factory.

9

8

7

6

5

4

3

SW

HEX

A9

200

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A8

100

 

 

 

 

 

 

 

A7

80

 

 

 

 

 

 

 

A6

40

ADDRESS

 

 

 

 

A5

20

 

 

 

 

A4

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A3

08

Figure 1. Base address switch

In the default configuration, addresses 9 and 8 are down, and all others are up. Address 9 = 200 hex

(512 decimal), and address 8 = 100 hex (256 decimal). When added together they equal 300 hex (768 decimal).

9

CIO-DIO48H User's Guide

Installing the CIO-DIO48H

Disregard the numbers printed on the switch

When setting the base address, refer to the numbers printed in white on the printed circuit board.

PC I/O Address Summary

Hex Range

Function

Hex Range

Function

 

 

 

 

000-00F

8237 DMA #1

2C0-2CF

EGA

020-021

8259 PIC #1

2D0-2DF

EGA

040-043

8253 TIMER

2E0-2E7

GPIB (AT)

060-063

8255 PPI (XT)

2E8-2EF

SERIAL PORT

060-064

8742 CONTROLLER (AT)

2F8-2FF

SERIAL PORT

070-071

CMOS RAM & NMI MASK (AT)

300-30F

PROTOTYPE CARD

080-08F

DMA PAGE REGISTERS

310-31F

PROTOTYPE CARD

0A0-0A1

8259 PIC #2 (AT)

320-32F

HARD DISK (XT)

0A0-0AF

NMI MASK (XT)

378-37F

PARALLEL PRINTER

0C0-0DF

8237 #2 (AT)

380-38F

SDLC

0F0-0FF

80287 NUMERIC CO-P (AT)

3A0-3AF

SDLC

1F0-1FF

HARD DISK (AT)

3B0-3BB

MDA

200-20F

GAME CONTROL

3BC-3BF

PARALLEL PRINTER

210-21F

EXPANSION UNIT (XT)

3C0-3CF

EGA

238-23B

BUS MOUSE

3D0-3DF

CGA

23C-23F

ALT BUS MOUSE

3E8-3EF

SERIAL PORT

270-27F

PARALLEL PRINTER

3F0-3F7

FLOPPY DISK

2B0-2BF

EGA

3F8-3FF

SERIAL PORT

You can set the base address switch to any address in the range of 000-3F8. If you are not using IBM prototyping cards or another board which occupies these addresses, 300-31Fh are also free to use.

Addresses not specifically listed, such as 390-39Fh, are not reserved and may be available. Check your computer for other boards which may use I/O addresses.

Installing the CIO-DIO48H

After you configure the base address, you can install the CIO-DIO48H into your computer. Follow the steps below.

Install the MCC DAQ software before you install your board

The driver needed to run your board is installed with the MCC DAQ software. Therefore, you need to install the MCC DAQ software before you install your board. Refer to the Quick Start Guide for instructions on installing the software.

1.Turn your computer off, open it up, and insert your board into an available ISA slot.

2.Close your computer and turn it on.

3.To test your installation and configure your board, run the InstaCal utility you installed in the previous section. Refer to the Quick Start Guide that came with your board www.mccdaq.com/PDFmanuals/DAQ- Software-Quick-Start.pdf for information on how to initially set up and load InstaCal.

10

CIO-DIO48H User's Guide

Installing the CIO-DIO48H

Connecting the board for I/O operations

Connectors, cables – main I/O connector

The table below lists the board connector, applicable cables, and compatible accessory products.

 

Board connector, cables, and accessory equipment

 

 

 

Connector type

 

50-pin shrouded male header

Compatible cables

 

C50FF-x

Compatible accessory products

 

CIO-TERM100

with the C50FF-x cable

 

CIO-SPADE50

 

 

CIO-MINI50

 

 

SSR-RACK24, SSR-RACK48

 

 

CIO-ERB24, CIO-ERB48

Pinout – main I/O connector

The CIO-DIO48H connector is a 50-pin male shrouded header connector that is accessible through the PC/AT expansion bracket.

GND

50

49

+5V

FIRSTPORTC Bit 0

48

47

FIRSTPORTC Bit 1

FIRSTPORTC Bit 2

46

45

FIRSTPORTC Bit 3

FIRSTPORTC Bit 4

44

43

FIRSTPORTC Bit 5

FIRSTPORTC Bit 6

42

41

FIRSTPORTC Bit 7

FIRSTPORTB Bit 0

40

39

FIRSTPORTB Bit 1

FIRSTPORTB Bit 2

38

37

FIRSTPORTB Bit 3

FIRSTPORTB Bit 4

36

35

FIRSTPORTB Bit 5

FIRSTPORTB Bit 6

34

33

FIRSTPORTB Bit 7

FIRSTPORTA Bit 0

32

31

FIRSTPORTA Bit 1

FIRSTPORTA Bit 2

30

29

FIRSTPORTA Bit 3

FIRSTPORTA Bit 4

28

27

FIRSTPORTA Bit 5

FIRSTPORTA Bit 6

26

25

FIRSTPORTA Bit 7

SECONDPORTC Bit 0

24

23

SECONDPORTC Bit 1

SECONDPORTC Bit 2

22

21

SECONDPORTC Bit 3

SECONDPORTC Bit 4

20

19

SECONDPORTC Bit 5

SECONDPORTC Bit 6

18

17

SECONDPORTC Bit 7

SECONDPORTB Bit 0

16

15

SECONDPORTB Bit 1

SECONDPORTB Bit 2

14

13

SECONDPORTB Bit 3

SECONDPORTB Bit 4

12

11

SECONDPORTB Bit 5

SECONDPORTB Bit 6

10

9

SECONDPORTB Bit 7

SECONDPORTA Bit 0

8

7

SECONDPORTA Bit 1

SECONDPORTA Bit 2

6

5

SECONDPORTA Bit 3

SECONDPORTA Bit 4

4

3

SECONDPORTA Bit 5

SECONDPORTA Bit 6

2

1

SECONDPORTA Bit 7

Figure 2. I/O connector pin-out

All the digital inputs and outputs are TTL. Under normal operating conditions, the voltages on the I/O pins range from near 0 volts for the low state, to near 5 volts for the high state. The voltages and currents of external devices usually exceed these values. Because of this, external relays are usually employed to handle higher current and voltage loads.

In addition to load matching, digital signal sources often need to be filtered or "de-bounced". Refer to the Guide to Signal Connections for information on digital interfacing. This document is available at www.mccdaq.com/signals/signals.pdf

11

CIO-DIO48H User's Guide Installing the CIO-DIO48H

Cabling

2

 

 

 

1

The red stripe

2

 

 

 

1

 

 

 

identifies pin # 1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50

 

 

 

49

50

 

 

 

49

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50-pin Female

50-pin Female

IDC Connector

IDC connector

Figure 3. C50FF-x cable

Field wiring, signal termination, and conditioning

You can use the following cabling, screw termination, and signal conditioning products with the CIO-DIO48H.

CIO-TERM100 – 100-pin screw terminal board (daisy-chained 50-pin IDC connectors). Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=281.

CIO-SPADE50 – 16" X 4" termination panel which mates with both 37-pin and 50-pin connectors. Details on this product are available on our web site at www.mccdaq.com/pdfs/screw.pdf.

CIO-MINI50 – 50-pin screw terminal board. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=102&pf_id=258.

SSR-RACK24 – 24-channel, solid-state relay mounting rack for digital signal conditioning. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=1193.

SSR-RACK48 – 48-channel, solid-state relay mounting rack with quad-format modules. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=122&pf_id=622.

CIO-ERB24 – 24 Form C relays, 6 Amp relay accessory board for digital signal conditioning. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=241.

CIO-ERB48 – 48 Form C relays, 6 Amp, relay, 50-pin accessory board for digital signal conditioning. Details on this product are available on our web site at www.mccdaq.com/cbicatalog/cbiproduct.asp?dept_id=123&pf_id=242.

Information on signal connections

General information regarding signal connection and configuration is available in the Guide to Signal Connections. This document is available on our web site at www.mccdaq.com/signals/signals.pdf.

12

Chapter 3

Functional Details

82C55 emulation

The CIO-DIO48H emulates the 82C55 chip. The 82C55 emulation initializes all ports as inputs on power-up and reset. A TTL input is a high impedance input. If you connect another TTL input device to the output, it could be turned on or off every time the board is reset.

To establish a consistent TTL level at power-up, use resistors tied to either +5V (pull-up) or ground (pulldown). There are open locations for pull-up and pull-down resistor packs on the board.

Whenever an 82C55 emulation is powered on or reset, all pins are set to high-impedance input. Based on standard TTL functionality, these inputs will typically float high, and may have enough drive current to turn on external devices.

Consequently, if you have output devices such as solid state relays, they may be switched on whenever the computer is powered on or reset. To prevent unwanted switching, and to drive all outputs to a known state after power on or reset, pull all pins either high or low through a 2.2 K resistor.

Signal level control

To safeguard against unwanted signal levels, the devices being controlled by the CIO-DIO48H board should be tied low or high as required by a 2.2K resistor. In a 2.2K eight-resistor SIP pack, one side of all of the resistors is connected to a single common point and brought out to a pin. The common line, usually marked with a dot or line, is at one end of the SIP. The remaining resistor ends are brought out to the other eight pins (refer to Figure 4).

2.2KOhm SIP

Dot indicates the common line

(LO or HI)

I/O Lines

Figure 4. Eight-resistor SIP schematic

Figure 5 shows a schematic of an SIP installed in both the pull-up and pull-down positions. Each port provides 10 holes in a line. The end labeled HI connects to +5V. The end marked LO connects to GND. The eight holes in the middle (n0 –n7) connect to the eight lines of the port (A, B or C).

13

CIO-DIO48H User's Guide

Functional Details

 

+5 VDC

2.2 K SIP

Dot

 

 

 

HI

COM

 

 

 

 

 

n7

 

 

 

n6

 

ConnectorUser LinesI/ODigital

 

n5

 

 

 

 

Digital

n4

 

 

I/O

 

 

 

 

 

Port

n3

 

 

 

n2

 

 

n = A, B, or C

n1

 

 

 

n0

 

 

LO (GND)

2.2 K SIP installed for pull-up

+5 VDC

 

 

HI

2.2 K SIP

 

 

 

 

 

 

n7

 

 

 

 

n6

 

ConnectorUser

LinesI/ODigital

 

n5

 

 

 

 

 

Digital

n4

 

 

 

I/O

 

 

 

 

 

 

 

Port

n3

 

 

 

 

n2

 

 

 

n = A, B, or C

n1

 

 

 

 

n0

 

 

 

LO

 

COM

 

 

(GND)

 

Dot

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.2 K SIP installed for pull-down

Figure 5. Pull-up and pull-down resistor SIPs schematic

To pull-up lines, orient the SIP with the common pin (dot) toward the HI end; to pull-down, install the resistor with the common pin in the LO hole. When installing pull-up and pull-down resistor SIP packs, we recommend using 2.2K, eight-resistor Single Inline Packages (MCC part number SP-K2.29C). Use a different value only if necessary.

Unconnected inputs float

Unconnected inputs typically float high, but not reliably. If you are using a CIO-DIO48H for input and have unconnected inputs, ignore the data from those lines. You do not have to terminate input lines. Unconnected lines will not affect the performance of connected lines. Mask out any unconnected bits in software.

Digital I/O Isolation

To provide external signal conditioning and isolation, you can connect the CIO-DIO48H to a CIO-ERB24 or SSR-RACK24. The CIO-ERB24 provides 24 Form C electromechanical relays. The SSR-RACK24 is a mounting rack for 24 solid-state relays.

The CIO-DIO48H provides digital I/O in groups of 48 bits. Many relay and solid-state relay (SSR) racks provide only 24-bits of digital I/O. You can configure the CIO-ERB24 relay output board and SSR-RACK24 I/O module rack in a daisy chain configuration to use all of the digital I/O bits provided by the CIO-DIO48H board. An example of the daisy chain configuration scheme for each board is shown on page 15.

14

CIO-DIO48H User's Guide

Functional Details

CIO-DIO48H

 

IN

CIO-ERB24

 

 

OUT

 

 

or

 

 

 

SSR-RACK24

 

 

 

CIO-ERB24

 

 

IN

 

 

 

 

OUT

or

 

 

 

SSR-RACK24

 

 

 

Figure 6. CIO-DIO48H to CIO-ERB24 or SSR-RACK24 daisy chain

The 24 digital I/O bits on pins 25 to 48 (base address +0 through +2) control the first relay board. The 24 digital I/O bits on pins 1 to 24 control the second relay/SSR board on the daisy chain.

Use the C50FF-x cable for interconnections. You can also use SSR-RACK48 or the CIO-ERB48 series relay boards.

15

Chapter 4

Programming and Developing Applications

After following the installation instructions in Chapter 2, your board should now be installed and ready for use. In general there may be no correspondence among registers for different boards. Software written at the register level for other models will not function correctly with your board.

Programming languages

Measurement Computing's Universal Library provides access to board functions from a variety of Windows programming languages. If you are planning to write programs, or would like to run the example programs for Visual Basic or any other language, refer to the Universal Library User's Guide (available on our web site at www.mccdaq.com/PDFmanuals/sm-ul-user-guide.pdf).

Packaged applications programs

Many packaged application programs now have drivers for your board. If the package you own does not have drivers for your board, please fax or e-mail the package name and the revision number from the install disks. We will research the package for you and advise how to obtain drivers.

Some application drivers are included with the Universal Library package, but not with the application package. If you have purchased an application package directly from the software vendor, you may need to purchase our Universal Library and drivers. Please contact us by phone, fax or e-mail:

Phone: 508-946-5100 and follow the instructions for reaching Tech Support.

Fax: 508-946-9500 to the attention of Tech Support

Email: techsupport@mccdaq.com

Register-level programming

You should use the Universal Library or one of the packaged application programs mentioned above to control your board. Only experienced programmers should try register-level programming.

If you need to program at the register level in your application, refer to the Register Map for the CIO-DIO48, CIO-DIO48H, CIO-DIO96, and CIO-DIO192. This document is available on our website at http://www.mccdaq.com/registermaps/RegMapCIO-DIO-Series.pdf.

16

Chapter 5

Specifications

Typical for 25 °C unless otherwise specified.

Specifications in italic text are guaranteed by design.

Digital input/output

 

 

Table 1. DIO specifications

 

 

Digital type

8255 mode 0 emulation

 

 

Output: 74S244

 

 

Input: 74LS373

Configuration

4 banks of 8, 4 banks of 4, programmable by bank as input or output

Number of channels

48 I/O

Output high

2.4 volts min @ -15 mA

Output low

0.5 volts max @ 64 mA

Input high

2.0 volts min, 7 volts absolute max

Input low

0.8 volts max, -0.5 volts absolute min

Power-up / reset state

Input mode (high impedance)

Miscellaneous

Locations provided for installation of pull-up or pull-down resistors.

Power consumption

 

Table 2. Power consumption specifications

 

 

+5V

700 mA typical, 1200 mA max

Environmental

 

Table 3. Environmental specifications

 

 

Operating temperature range

0 to 50 °C

Storage temperature range

-40 to +100 °C

Humidity

0 to 90% non-condensing

Main connector and pin out

 

Table 4. Connector specifications

 

 

Connector type

50-pin shrouded male header (P1)

Compatible cables

C50FF-x

Compatible accessory products

CIO-TERM100

with the C50FF-x

CIO-SPADE50

 

CIO-MINI50

 

SSR-RACK24, SSR-RACK48

 

CIO-ERB24, CIO-ERB48

17

CIO-DIO48H User's Guide

 

 

Specifications

 

 

 

Table 5. Main connector pin out

 

 

 

 

 

 

 

 

Pin

Signal name

 

Pin

Signal name

 

 

50

GND

 

49

+5V

 

 

48

FIRSTPORTC Bit 0

 

47

FIRSTPORTC Bit 1

 

 

46

FIRSTPORTC Bit 2

 

45

FIRSTPORTC Bit 3

 

 

44

FIRSTPORTC Bit 4

 

43

FIRSTPORTC Bit 5

 

 

42

FIRSTPORTC Bit 6

 

41

FIRSTPORTC Bit 7

 

 

40

FIRSTPORTB Bit 0

 

39

FIRSTPORTB Bit 1

 

 

38

FIRSTPORTB Bit 2

 

37

FIRSTPORTB Bit 3

 

 

36

FIRSTPORTB Bit 4

 

35

FIRSTPORTB Bit 5

 

 

34

FIRSTPORTB Bit 6

 

33

FIRSTPORTB Bit 7

 

 

32

FIRSTPORTA Bit 0

 

31

FIRSTPORTA Bit 1

 

 

30

FIRSTPORTA Bit 2

 

29

FIRSTPORTA Bit 3

 

 

28

FIRSTPORTA Bit 4

 

27

FIRSTPORTA Bit 5

 

 

26

FIRSTPORTA Bit 6

 

25

FIRSTPORTA Bit 7

 

 

24

SECONDPORTC Bit 0

 

23

SECONDPORTC Bit 1

 

 

22

SECONDPORTC Bit 2

 

21

SECONDPORTC Bit 3

 

 

20

SECONDPORTC Bit 4

 

19

SECONDPORTC Bit 5

 

 

18

SECONDPORTC Bit 6

 

17

SECONDPORTC Bit 7

 

 

16

SECONDPORTB Bit 0

 

15

SECONDPORTB Bit 1

 

 

14

SECONDPORTB Bit 2

 

13

SECONDPORTB Bit 3

 

 

12

SECONDPORTB Bit 4

 

11

SECONDPORTB Bit 5

 

 

10

SECONDPORTB Bit 6

 

9

SECONDPORTB Bit 7

 

 

8

SECONDPORTA Bit 0

 

7

SECONDPORTA Bit 1

 

 

6

SECONDPORTA Bit 2

 

5

SECONDPORTA Bit 3

 

 

4

SECONDPORTA Bit 4

 

3

SECONDPORTA Bit 5

 

 

2

SECONDPORTA Bit 6

 

1

SECONDPORTA Bit 7

 

18

Declaration of Conformity

Manufacturer:

Measurement Computing Corporation

Address:

10 Commerce Way

 

Suite 1008

 

Norton, MA 02766

 

USA

Category: Electrical equipment for measurement, control and laboratory use.

Measurement Computing Corporation declares under sole responsibility that the product

CIO-DIO48H

to which this declaration relates is in conformity with the relevant provisions of the following standards or other documents:

EU EMC Directive 89/336/EEC: Electromagnetic Compatibility, EN55022 (1987), EN50082-1

Emissions: Group 1, Class B

EN55022 (1987): Radiated and Conducted emissions. Immunity: EN50082-1

IEC 801-2 (1987): Electrostatic Discharge immunity, Criteria B.

IEC 801-3 (1984): Radiated Electromagnetic Field immunity Criteria A.

IEC 801-4 (1988): Electric Fast Transient Burst immunity Criteria B.

Declaration of Conformity based on tests conducted by Chomerics Test Services, Woburn, MA 01801, USA in December, 1995. Test records are outlined in Chomerics Test Report #EMI0168B.95.

We hereby declare that the equipment specified conforms to the above Directives and Standards.

Carl Haapaoja, Director of Quality Assurance

Measurement Computing Corporation 10 Commerce Way Suite 1008

Norton, Massachusetts 02766 (508) 946-5100 Fax: (508) 946-9500

E-mail: info@mccdaq.com www.mccdaq.com